Assessment, Remediation, and Regulatory Closure for a Worcester Regional Airport Authority

Location: Worcester, MA

Company: Regional Airport Authority

Goal: Eliminate MassDEP Disposal Sites (Areas of Concerns)

Services: Assessment Activities, Method 1, 2 and/or 3 Risk Characterizations, and Remedial Actions which led to Regulatory Closure of Five (5) Areas of Concern

Tank Farm

Soil Excavation

Maintenance Area

Install NAPL Recovery Well

Project Highlights

Tank Farm Area

  • Conducted Immediate Response Action (IRA) and Release Abatement Measure activities, including excavation of LNAPL-impacted soil.
  • Submitted Class A-2 RAO to MassDEP supported by a Method 3 Risk Characterization (M3RC) which demonstrated that a condition of No Significant Risk to health and the environment had been achieved.

Maintenance Area

  • Conducted IRA to address gasoline release.  Included sampling of soil, groundwater, soil gas and indoor air, plus soil excavation, LNAPL and Enhanced Fluid Recovery.
  • Submitted a Class A-2 RAO to MassDEP supported by a M3RC which demonstrated that NSR had been achieved.

Glycol Recovery Area

  • Conducted Phase I assessment activities which were successful in demonstrating that PAH impacts in soils were attributable to urban fill.
  • Submitted a Class B-1 RAO to MassDEP supported by a M3RC which demonstrated that NSR had been achieved.

Hangar 2 Outfall Area

Conducted assessment of a storm drain outfall pipe discharge area which was listed as a disposal site due to the discovery of PAHs in soil and sediment.  Submitted a Class B-1 RAO to MassDEP which demonstrated that a condition of NSR to health and the environment had been achieved.